Torch.



strafrns; PATENT fOFFlCEff,

An'rnun Ji FAUsaK AND IRWINGSF. rAUsEx, or s'r. Louis, MISSOURI;

rosen.

To lll/whom t may concern:

Be it known that we, ARTHUR J. FAUsEx :and IRWING F. FAUSEK, citizensefthe ing the acetylene through the oxygen passageway.

ofthe kind to which our invention relates United States of America,residents of the city of St. Louis, State of Missouri, have inventedcertain new and useful Improvementsin Torches, of which the following isa full, clear, -and exact description, yref-- erence being had tiytheaccompanying drawings, forming a part of this specification.

Our. invention relates to a torch or blowpipe adapted to be used inwelding operaone of the objects being to produce a sageways'-forconducting a mixture of acetylene gas and oxygen gas to said nozzle, thetorch including a check valve for preventgas from being' 'forced In iatorch the oxygen passageway is in communication with the acetylenepassageway at a point adjacent to the nozzle where both gases aredischarged, and under some conditionsfthe pressure of the acetylene maybe greater eventthe acetylene will tend to 'low into the oxygenpassageway, and, if it ispermitted to do so, the combustible mixture ofacetylene and oxygen gas may be acci dentally ignited and exploded inthe oxygen passageway. We, therefore, place a check valve in the oxygenpassageway so as td automatically close said passageway when theipressure ofthe acetylene is greater than' the pressure of the oxy l f'The preferred fo m of our invention comscratched or otherwise marrepri'sesa discharge head and a nozzle screwed 1n o provided with'a smoothseat adapted to receive the nozzle. To revent leakage .of the acetylenegas at the ]oint between -thenozzle and the discharge head, the seatjust referred to must be-kept perfectly smooth, and one. of the objects.of our invention is to provide means for protectingu such seats 'toprevent theml from bein accidentall or mutilate The invention alsoincludes other details of construction whiclrwill l'be hereinafterdescribed and set forthv in the claims.

Figure I is ,a longitudinal section of a torch or blow pipe embodyingthe features of our invention. Fig. II' is an enlarged transversesection takenon line- II, Fig. I.

the discharge head, l the latter being Fig. III is an enlarged detail'view illustrat- V ing a modication.

A designates a handle connected to a disy f PatentedMa'y 1S, 1915.Application mea August 12, 1914.A serial No. 856,325.

comprises atubular member 1, an inlet member 2 at one end of saidtubular member '1,y

and a valve housing 3 at the other end of the member 1.

l designates an acetylene tube4 surrounded by an oxygen tube 5, saidtubes being connected to each other by means of an annular distancepiece 6 having` a passageway 7 which communicates with the oxygen tube5. A flanged coupling head 8 secured to the tubes 4 and 5 is coupled tothe discharge head.`B, -prefera ly by means of a union coupling 9, thelatter being screwed onto i the discharge head. One end-of the' oxygentube 5 is screwed'intothe valve housing 3 so 'that bothv ofthe tubes 4:and 5 may be readily removed by unscrewiing the tube 5 yfrom the valvehousing 3 and removing the union coupling 9 from the discharge head B.

The -inlet member 2 at one end of the way 10 and an acetylene passageway11, and

handle is provided with an oxygen'passagewhen the torch isin-servicethese Apassagei ways are in communication-with the oxygen andacetylene tanks. f

12 and T3, respectively, designatev tubes arranged within the handle Aand leading from the passageways 10 and 11 tothe valve housing 3, thelatter being provided with ports 14j and 15 which communica e withsaid'-'t11bes. Check valves 16 and '17 arranged in valve adapted to openand close the ports 14 and 15. An angular passageway 20 leads from theacetylene tube4 to the valve chamber 19,v

and a passagewayl 21 leads from the valve chamber 18 to? an annularpassageway 22 formed at the-"end ofthe distance piece 6, said annularpassageway bein" in communication withthe passageway tfleading to' 'thetube The ogygen forced'into the inlet Fig. 'I passes" t rough the tube 12, in'to the port 114, through the v alve chamber 18, then through thepassageway 21, into the annu- Vdar passageway 22H through passageway' 7,into oxygentube 5,' lthrough a passageway passageway 10,; at "therighthand end of chambers' 18 and 19 are 23, and into an. annular passageway24:

formed between'theconnecting head 8 and discharge head' B. The dischargehead. B is hreaded opening, /ided with a screw 'threaded neck28 screwedy vprovided with an oxygen passageway v25 communicating with-the.annular passageway 24.. 'lf/he' acetylene gas primarily forced' intothepassageway 11 flows through the tube 13,/and port 15, into the valvechamber 19, through the angular passageway and tube 4 to a passageway 26in 'the couplin member 8, and then into a passageway 2 formed in thedischarge head B. The discharge head' B is' provided with a screw andthe vnozzle is prointo said opening. A'threaded member 29,

` f chamber '31,the latter-being Aformed in a sageway `Hows thr alsoscrewed into the 'discharge/head, is po` vided with alongitudinalpassageway 30 enlarge'd at its lower end to forma mixing tubularneck'32.; .The oxygen from the'pasugh the passageway 30 intoNtthemixing. c chargedthrough the passageway 33 in the nozzle 0.,' Thetubular neck 32 is lprovided with 'transverse passageways 34 throughwhich theacetylene is forced from the .passageway 2 7. -The acetylenemixing with the oxygen` 1hr-.fthe mixing chamber 31 is dis-` charged zley Y Owing tothe-difculty 4in-'re ulating the fio'w of acetylene gasand-the dent to improper regulation,

with the oxygen through the noz- -we yprovide means vforautomatieall-y'l reglating'the iiow of acetylene in -accordance with thedimen-v sions ofthe discharge port in screwed yintofthe' discharge head,and to securethe desired regulation the 'tubular neck 32is surroundedbyand closely fitted to the' inner vend portion fof. the nozzle, thetransverse passagewaysBi formed inU said neck -belng 'partially closedby'the 'inner end-of .32 as shown` in Figs. l and Il, but if desired,the neck may be provided with perforations 3% forming" ytheyfellitigated passageways or the series ofilpassageways in the tubularneck 32 accordancewith the size the dischargenozzldl nozzles aretlfie'refore constructed to .slideaid. tubular neck to lare@dise-...arse enteran a. tapered the nozzle. These passageways 34 arepreferably' formediby' slotting the tubular neck sliownin- Fig; III. Theobject in is, as' l.previously suggested, to provide 4meansfor'regulating .the flow 'of acetylene gas in and the different along.the f outer' face of. partial-lynchet; .th 34. A lar' eznozzleor.

verse passageways i y w 'zzle having a very passageway .33 may be prol..opening 36 as shown in Fig. l ,fso.that '-.tr nsverse passage- Ways3ft or"fj34r.wil -l gnot e' closed by the 'nozzlev'andagjnozzlehaving asmaller discharge port 33jmaybonstructed as shown soas to expose only:the upper ends 'of the transverse passageways 3 4. -Any be obtained byvarythe strong valve chamber 3 at pressure of the oxygen-gas,

amber 31 and is dis- I Vice' for preventing injury to anyl 'conduc'torswhen the gas contained thereinl anger incin the nozzle C. Nozzles foi`different dimensions may bev the safety device and the main of thepassageway f venting the smooth nozzle seat I ing the length of thethreaded neclrs=2l8 on the-nozzles, or by enlarging the hole atftheinner ends .of said in Figs. I and IH. l

The( :heclvalves `16 and 17 are located in a point adje"- threaded necksas shown-Y cent to the conductors leading tothe nozzle,

.and owing to their location,l these check valves will protect thehandle 'from the' effects of an explosion occurring between the\ handleand the nozzle.

rlllhe pressure of the acetylene gas is, under is accidentally exploded.With this object in View the gas-conductors are provided withl exhaustports 40 normally closed by yieldable sheet metal-closures 41 adapted tobe.`

openedor ruptured by the force of an en plosion in the gas passageways.-Each .closure. 41 is soldered, or otherwise suitably securedto a plug42 screwed into the valve housing 3 and serving as a guideforone of vthe check valves,each of said plugs 42 being provided with a passageway13 leadlng from a valve chamber to an exhaust port 4 0.

. It will be Anoted that eachtof the safety devices is in communicationwith a gas passageway at a `point between a checkvalve and the dischargenozzle, the object being to so locate these. parts .that the vmain gassupply cannot be ignited or otherwise affected by an `explosionoccurring in the passageway which communicates with the safety device.'

lf the check valve was not located between ses Supply, the explodinggas, ignitedoat the nozzle, would be free to ow backwardly into maingassupply However, owing tothe locartion of the "check valve, the forceof the explosion cannot be relieved by the v'iiow of burninggas tothe-gas 'supply' and since the expanding gas is conned in the pas-`.sageway' leading from the checkvalve to the nozzle, the safety ldevicecommunicating with said-passageway will yield to .prevent injury toother-parts of the tereh` structure. .A smooth annular vnozzle seat 44isformed in the dischargehead at the outer end of the screw threadedopening said head, and this. smoothnozzle seat is surrounded by anannular rib 45 projecting from the outer end of thdischarge head. Whenthe' nozzleis removedv from the discharge head, the annular rib 45serves as a Ashieldjfor pref'rom being accidentally `scratched o rotherwise mutilated. The nozzle is provided with an vabutment shoulder46 extending "from its screw threaded .neck and provided with a smoothannular face which' firmly engages the smooth seat on the discharge headso as to prevent leakage of7 the acetylene gas at this point.l Thenozzle is also provided with an annular rib47 located adjacent to theabutment shoulder 46 and serving as a shield rfor the smooth annularacejof said abutment shoulderi The annular rib 4:7 and the threaded neck28 of the nozz'le are so`lo`- cated that the smooth abutment face on thenozzle is not liable to be accidentally marred when the nozzle-isremoved from the torch. We claim:- Q 1. A torch ,havin a handle,a/nozzle, conductors leading from said handle to.' said comp nozzle, thehandle beingprov'ided'with passageways through which oxygen gas and torbeingv previded withjan. exhaust. port,

and a sheet metal .pclosunefor said. exhaust .pore adapt-ew bei,

is exploded in said conductor. 5

d non dnetors, .one off'which 4is Prv'idd smooth annular s ea t`theouterQend of said tive .Ifill' surrounding opening and;l apr, tec

I said. smoothfa'nn arfff'seatf; the @ther 1111i 'being Provided with,fsmooananpad' ,adaptedl to engage Gductr bnglgircvidedfnith Screwthreaded neck adaltedte ,fltjintosaid' screw threaded opening andanabutment adjacf'snt to said screw threade$l..ll1ck,said, abutrnentsmooth annular seat 'atathe-outer end of said opening and a protectysaid smooth annular the other' tlui conductor being providedf'with-gascrew threaded neck adapted to Vfit into said screw threaded opening, anextended abutment, adjacent to said screwthreaded.neck, said abutmentbeing provided with a smooth'face protective rib extendingjfrom saidabut 5. A torch'nozzle having -a screw threaded neck at its inner end,an abutment shoulder extending from said screw threaded neck, saidabutmentashoulder being provided with Aa smooth face. `for thepurposedescribed,

. as topartially i tubular neck, said internal nec 'vided'with alongitudinal oxygen passa ,-*85 l way communicating with said nozzle andptured .when the gas of 'the- 'character described way, and th'devicejof the chara terldescribed.-

comprising Huid: conductorsgfonefof which is .providedwith ascrewthreaded opening, a

to be ruptured when b surroundin said annular seat, and a' and aprotective rib fr Shielding the smooth lface of said abutment shoulder.

` 6.]A torch having a discharge head provided with a tubular neck, and anozzle securedto` said discharge. head and surrounding'said tubularneck,said nozzle being slidably 'ltted to the outer face ofsaid tubular neck,said tubular neck being provided with a longitudinal lpassagewaycommunicating with said nozzle and with a transverse passagewayleadingto said longitudinal passageway, and the-'said nozzle being movablealong the outer face of said tubular neck so Y c lose --saidtransversepassagej way for the rpurpose described. l f

vided with an. internal neck, and a nozzle roundingv said internal neck,said nozzle being slidably fittedv tothe outer -aoce of saidl 5mg Prk'i'. A torch yhaving a discharge head prqextending into'said dischargehead and sura with a transverse acetylene passagewa ing-movablejalongtheouter face of said im" ternal neck so as to partially. close said.leadingto said'llong'itudina1 passagewa 4and the innen-:end portion ofsaidy nozzle'be transverse acetylene passageway for the purposedescribed. i

8. Al torch hav-ing a discharge head provided with Va tubular neck,andia nozzle eX- tending into said discharge head and closely tted tosaid ltubular neck, vsaid tubular neck 'passagewayfcommunicating withsaid nozlar neck so as ,tolpartially close said. transvverse acetylenepassageway for the purpose described. L f y being'.provided with allongitudinal oxygen slide along said tubu- .9. "A torchhaving-anozzle-,a `gas condiicf I' tor. leading -to said nozzle, said.asconductorbeing prvided with` an' e and a closure for said exhaust'port adapted the. gas is exploded in said gas conductor.

aust port,

'10. A torch having a nozzle, gas conducting device provided with apassageway leading :to saidnozzle, a checkvalve 1n said- -passageway,and asafety device adapted to yield when gas is exploded saidpassageway, said safety device beingin communication with saidpassageway at'a point between. said check Ivalve and nozzle.` f

,ARTHUR J. 'FAUSEK,

, IRWINGRF. FAUSEK,`

In the i resence 0f' A.l McCAnnny,

